iServe.pdf. Comprehensive service semantics and light-weight Linked Services: towards an integrated approach. WSMO-Lite Annotations for Web Services. Unified Lightweight Semantic Descriptions of Web APIs and Web Services. RDF 1.1 Concepts and Abstract Syntax. Abstract The Resource Description Framework (RDF) is a framework for representing information in the Web. This document defines an abstract syntax (a data model) which serves to link all RDF-based languages and specifications. The abstract syntax has two key data structures: RDF graphs are sets of subject-predicate-object triples, where the elements may be IRIs, blank nodes, or datatyped literals. They are used to express descriptions of resources. RDF datasets are used to organize collections of RDF graphs, and comprise a default graph and zero or more named graphs.
RDF 1.1 Concepts and Abstract Syntax also introduces key concepts and terminology, and discusses datatyping and the handling of fragment identifiers in IRIs within RDF graphs. Status of This Document This section describes the status of this document at the time of its publication. This document is part of the RDF 1.1 document suite.
This document was published by the RDF Working Group as a Recommendation. Table of Contents . Semantic Annotations for WSDL and XML Schema. Abstract This document defines a set of extension attributes for the Web Services Description Language and XML Schema definition language that allows description of additional semantics of WSDL components. The specification defines how semantic annotation is accomplished using references to semantic models, e.g. ontologies. Semantic Annotations for WSDL and XML Schema (SAWSDL) does not specify a language for representing the semantic models. Instead it provides mechanisms by which concepts from the semantic models, typically defined outside the WSDL document, can be referenced from within WSDL and XML Schema components using annotations.
Status of this Document This section describes the status of this document at the time of its publication. This is the W3C Recommendation of the Semantic Annotations for WSDL and XML Schema specification. Feedback on this document is welcome on the public mailing list public-ws-semann-comments@w3.org (public archive). Table of Contents Appendices 1. Concept. RDF Schema 1.1. Abstract RDF Schema provides a data-modelling vocabulary for RDF data. RDF Schema is an extension of the basic RDF vocabulary. Status of This Document This section describes the status of this document at the time of its publication.
Other documents may supersede this document. This document is an edited version of the 2004 RDF Schema Recommendation. This document was published by the RDF Working Group as a Recommendation. This document has been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and is endorsed by the Director as a W3C Recommendation. This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. Table of Contents 1. RDF Schema provides a data-modelling vocabulary for RDF data. This document is intended to provide a clear specification of RDF Schema to those who find the formal semantics specification [RDF11-MT] daunting. RDF Schema is a semantic extension of RDF. 2. 2.1 rdfs:Resource 2.2 rdfs:Class.
iServe - Data Model. The essence of the approach followed by iServe is the use of import mechanisms for a wide range of existing service description formalisms to automatically transform and expose service descriptions as Linked Data. Once transformed, the resulting service descriptions, which we refer to as Linked Services, are expressed in terms of a simple RDFS model, Minimal Service Model (MSM), which essentially captures the intersection of existing service description formalisms so as to smooth away the heterogeneity of services and SWS formalisms. Minimal Service Model In a nutshell, MSM is a simple RDF(S) integration ontology based on the principle of minimal ontological commitment; it captures the maximum common denominator between existing conceptual models for services.
Minimal Service Model, denoted by the msm namespace in the Figure below, defines Services which have a number of Operations. Operations in turn have input, output and fault MessageContent descriptions. Service modelling and representation.